The present invention provides an OLED display including a red organic light-emitting element, a green organic light-emitting element, and a blue organic light-emitting element set corresponding to a red filter device, a green filter device, and a blue filter device respectively. Thus, the chromaticity coordinate of the OLED display can be adjusted and NTSC can be increased. Selection of material made of the red, green, and blue light-emitting elements and light-utilizing efficiency are increased.